64390180

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{10487}}^1$

素因数の和:10803

約数の個数: 24

約数和(自身を含む): 135672768

約数和(自身を除く): 71282588

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 10487, 20974, 41948, 52435, 104870, 209740, 3219509, 6439018, 12878036, 16097545, 32195090, 64390180]

約数ペア:

[(1, 64390180), (2, 32195090), (4, 16097545), (5, 12878036), (10, 6439018), (20, 3219509), (307, 209740), (614, 104870), (1228, 52435), (1535, 41948), (3070, 20974), (6140, 10487)]